A full-fledged English dictionary has been added to the "New Rainbow Elementary School Dictionary" series, which is known for its ease of use and understanding. It is compatible with English program for elementary school, which will become a compulsory subject from this year, and the complete three-part structure including a picture dictionary, an English-Japanese dictionary, and a Japanese-English dictionary has been popular, where it is already getting a reprint! A total of 140,000 copies of the "Pocket Edition" and "Wide Edition" were sold to realize this hit.